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authorIhor Solodrai <ihor.solodrai@linux.dev>2026-02-23 11:07:26 -0800
committerAlexei Starovoitov <ast@kernel.org>2026-02-24 08:19:49 -0800
commit9d0272c91fbc3ae86f2c3b6ba0a0b0ee77d862e3 (patch)
treef9be1ccdbaad73a8bd767e241d08a390d3a4db63 /tools
parenta1a771bd649212ef32cf9b0bcc63213a762d354a (diff)
selftests/bpf: Fix memory leaks in tests
Fix trivial memory leaks detected by userspace ASAN: - htab_update: free value buffer in test_reenter_update cleanup - test_xsk: inline pkt_stream_replace() in testapp_stats_rx_full() and testapp_stats_fill_empty() - testing_helpers: free buffer allocated by getline() in parse_test_list_file Acked-by: Eduard Zingerman <eddyz87@gmail.com> Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev> Link: https://lore.kernel.org/r/20260223190736.649171-11-ihor.solodrai@linux.dev Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/bpf/prog_tests/htab_update.c1
-rw-r--r--tools/testing/selftests/bpf/prog_tests/test_xsk.c24
-rw-r--r--tools/testing/selftests/bpf/testing_helpers.c1
3 files changed, 22 insertions, 4 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/htab_update.c b/tools/testing/selftests/bpf/prog_tests/htab_update.c
index d0b405eb2966..ea1a6766fbe9 100644
--- a/tools/testing/selftests/bpf/prog_tests/htab_update.c
+++ b/tools/testing/selftests/bpf/prog_tests/htab_update.c
@@ -61,6 +61,7 @@ static void test_reenter_update(void)
ASSERT_EQ(skel->bss->update_err, -EDEADLK, "no reentrancy");
out:
+ free(value);
htab_update__destroy(skel);
}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_xsk.c b/tools/testing/selftests/bpf/prog_tests/test_xsk.c
index bab4a31621c7..7e38ec6e656b 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_xsk.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_xsk.c
@@ -2003,9 +2003,17 @@ int testapp_stats_tx_invalid_descs(struct test_spec *test)
int testapp_stats_rx_full(struct test_spec *test)
{
- if (pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE))
+ struct pkt_stream *tmp;
+
+ tmp = pkt_stream_generate(DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
+ if (!tmp)
+ return TEST_FAILURE;
+ test->ifobj_tx->xsk->pkt_stream = tmp;
+
+ tmp = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+ if (!tmp)
return TEST_FAILURE;
- test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+ test->ifobj_rx->xsk->pkt_stream = tmp;
test->ifobj_rx->xsk->rxqsize = DEFAULT_UMEM_BUFFERS;
test->ifobj_rx->release_rx = false;
@@ -2015,9 +2023,17 @@ int testapp_stats_rx_full(struct test_spec *test)
int testapp_stats_fill_empty(struct test_spec *test)
{
- if (pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE))
+ struct pkt_stream *tmp;
+
+ tmp = pkt_stream_generate(DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
+ if (!tmp)
+ return TEST_FAILURE;
+ test->ifobj_tx->xsk->pkt_stream = tmp;
+
+ tmp = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+ if (!tmp)
return TEST_FAILURE;
- test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+ test->ifobj_rx->xsk->pkt_stream = tmp;
test->ifobj_rx->use_fill_ring = false;
test->ifobj_rx->validation_func = validate_fill_empty;
diff --git a/tools/testing/selftests/bpf/testing_helpers.c b/tools/testing/selftests/bpf/testing_helpers.c
index 16eb37e5bad6..66af0d13751a 100644
--- a/tools/testing/selftests/bpf/testing_helpers.c
+++ b/tools/testing/selftests/bpf/testing_helpers.c
@@ -212,6 +212,7 @@ int parse_test_list_file(const char *path,
break;
}
+ free(buf);
fclose(f);
return err;
}